Specifications

CY7C6431x
CY7C6434x
CY7C6435x
Document Number: 001-12394 Rev. *R Page 23 of 40
AC General Purpose I/O Specifications
Tab l e 1 8 lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.
Figure 11. GPIO Timing Diagram
AC External Clock Specifications
Tab l e 1 9 lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.
Table 18. AC GPIO Specifications
Symbol Description Conditions Min Typ Max Units
F
GPIO
GPIO operating frequency Normal strong mode,
Ports 0, 1
– – 12 MHz
TRise23 Rise time, strong mode
Ports 2, 3
V
DD
= 3.0 to 3.6 V,
10% - 90%
15 – 80 ns
TRise01 Rise time, strong mode
Ports 0, 1
V
DD
= 3.0 to 3.6 V,
10% - 90%
10 – 50 ns
TFall Fall time, strong mode
All Ports
V
DD
= 3.0 to 3.6 V,
10% - 90%
10 – 50 ns
TFall
TRise23
TRise01
90%
10%
GPIO
Pin
Output
Voltage
Table 19. AC External Clock Specifications
Symbol Description Conditions Min Typ Max Units
F
OSCEXT
Frequency 0.750 – 25.2 MHz
– High period 20.6
– 5300 ns
– Low period 20.6
– –ns
– Power-up IMO to switch 150
– – s